support vm events available to systrace

[yuanhuihui]

For example, API_TIMELINE_DURATION in dart_api_impl.cc

DART_EXPORT Dart_Handle Dart_Invoke(Dart_Handle target,
                                    Dart_Handle name,
                                    int number_of_arguments,
                                    Dart_Handle* arguments) {
  DARTSCOPE(Thread::Current());
  API_TIMELINE_DURATION(T);
  ...
}

(https://github.com/flutter/engine/pull/14323/files) this PR make API stream events available to systrace. but only can record TimeBeginEndScope, not including TimelineDurationScope.

with this PR, Dart_Invoke event can support in systrace

so I choose to replace all uses of TimelineDurationScope with TimeBeginEndScope, and remove unnecessary code to prevent future use of TimelineDurationScope method.

[yuanhuihui]

https://dart-review.googlesource.com/c/sdk/+/128200

[yuanhuihui]

relation to flutter/flutter#47771